JPH0929171A - Sorting device of fine mixture to be treated - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device having simple structure and seldom producing trouble by which even a wet or damp fine mixture to be treated is screen-sorted before it is sorted by weight into a combustible organic material and incombustible inorganic material. SOLUTION: A sorting device of a fine mixture to be treated 1 is constituted of a movable screen 10 in which a fine mixture to be treated W0 which materials of different size and weight are mixed to form is fed from above and screen-sorted, a conveying means 15 for feeding the minus sieves W1-W3 screened out by it to a duct riser part 25, and suction ducts 21, 22, 23 which consists of a vertical or inclined riser part 25 with open lower end for being fed with the minus sieves by the conveying means 15 to make a heavyweight material to fall and an almost horizontal part 28 equipped with a lightweight material separator 31 and further in which an end 29 of the light weight material separator 31 on the downstream side is connected to an air suction device 35. Other than the weight sorting using air suction, in a process for making the minus sieves fall by gravity, a pneumatic sorting part equipped with a blower for applying positive wind force may be provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building, a house collapse site, a building construction site, a civil construction site, a construction site, a waste material processing plant, a car crushing plant, and other earth and sand, glass scrap, and waste plastic. , Waste materials such as shredder dust mixed with a wide range of substances such as paper waste, wood waste, fiber waste, metals, agricultural products mainly including cereals, and other crushed or fine particles, fine mixed processing of powder and granules The present invention relates to a device for finely selecting mixed objects to be sorted according to size and weight.

[0002]

2. Description of the Related Art Conventionally, when such fine mixed objects to be treated, especially mixed wastes, are incinerated as they are, the contaminated earth and sand, glass chips, and metals are melted and adhere to the incineration equipment. It may cause damage or stop driving. In addition, waste plastic, paper waste, wood waste, and fiber waste that enter into the landfill will make the landfill unstable and cause land subsidence over a long period of time. There was no easy and rational way to handle it.

[0003]

Therefore, if the above-mentioned fine mixed material to be treated, especially the mixed waste, is further refined and separated into combustible organic substances and non-flammable inorganic substances, the production of regenerated fuel, iron, Recycling of resources, such as aluminum recovery, becomes possible, and not only is useful for conventional incineration and landfill treatment, but also valuable resources can be obtained. The present invention has been proposed in view of the above-mentioned conventional circumstances, and has an object of performing a structure in which even wet or wet fine mixed objects to be processed can be weight-sorted into combustible organic substances and nonflammable inorganic substances after sieving. It is an object of the present invention to provide a sorting device which is simple and has few troubles.

[0004]

In order to achieve the above object, in the present invention, in the fine sorting apparatus for mixed processed objects according to claim 1, objects of different sizes and weights are mixed. A fine sieve to be processed is supplied from above and a movable sieve for screening, a conveying means for transmitting a sieve passing material sieved by the movable sieve to a duct rising portion, and a feeding means for supplying the sieve passing material by the conveying means. A duct having a vertical or sloping lower end open part for dropping heavy objects and a substantially horizontal part having a light weight separator, and a downstream end of the light weight separator connected to an air inhaler. It is characterized by being composed of and.

[0005] In this apparatus, the movable sieve enables continuous sieve sorting operation without clogging even when the object to be processed is wet or wet. Regarding the material passing through the sieve supplied by the conveying means, heavy objects fall in response to the airflow sucked from the open lower end, whether vertical or inclined at the rising part of the duct, and light objects fall into the airflow. Conveyed. Here, the to-be-processed object is classified into a light-weight material in which the combustible organic matter is overwhelmingly large and a heavy-weight material in which the incombustible inorganic matter is overwhelmingly large. The light-weight material is collected in the light-weight separator, and the heavy material is collected at the lower end of the duct. By changing the air flow rate, it is possible to change the branch point between the light and heavy objects.

In order to achieve the above-mentioned object, in the present invention, the fine mixed object sorting apparatus according to claim 2 is a fine object to be mixed in which objects of different sizes and weights are mixed. A movable sieve which is supplied from above for screening, a conveying means for sending the sieve passing material screened by the movable sieve to the wind force sorting section, and a process of allowing the sieve passing material supplied by the conveying means to fall naturally It is characterized in that it is composed of a wind power selection section equipped with a blower for applying positive pressure wind power.

[0007] In this apparatus, the movable sieve enables continuous screening operation without clogging even when the object to be processed is wet or wet, similarly to the apparatus according to the first aspect. The material passing through the sieve is sent to the wind power sorting section by the transportation means and naturally falls, in the process of which positive pressure wind force is applied by the blower, and the light weight material therein is blown away in the distance.
Heavy objects fall nearby. Light and heavy objects are collected at the distance from the blower. By changing the positive pressure wind power, it is possible to change the branch point between light and heavy objects.

According to a third aspect of the present invention, in the apparatus for selecting a fine mixed object to be processed, the movable sieve is any one of a jumping screen, a trommel shifter, a vibrating sieve, a lap cylinder sieve and a rotary rotor array sorter. It is used by selecting from, and neither will cause clogging. In the case of jumping screens, the screening efficiency is high because the objects to be processed are jumped periodically, the structure is simple, maintenance and inspection are easy, and the power consumption is low. In the case of the Trommel shifter, the slanted horizontal tubular sieve is rotated for high screening efficiency, simple structure, easy maintenance, and low power consumption. In the case of a vibrating screen, it is compact because it has a structure in which a sieve box with a small mesh size is sequentially laminated from top to bottom for vibration. In the case of a lapped cylindrical sieve, the structure is swayable by the rotation of the eccentric cam, which is compact. In the case of a rotary rotor array sorter, large-scale sort processing is possible.

According to a fourth aspect of the present invention, in the apparatus for selecting a fine mixed processed material, the conveying means is constituted by a vibro feeder, a belt conveyor or a combination thereof. The vibro-feeder is suitable for short-distance conveyance and continuous fixed-quantity supply, and the belt conveyor is suitable for long-conveyance length, and the vibro-feeder can be incorporated appropriately for continuous constant-quantity supply.

According to a fifth aspect of the present invention, in the apparatus for selecting a fine mixed object to be processed, the movable sieve is provided with a sieve having a plurality of sieve mesh sizes, and the suction duct or the corresponding one of the sieves is provided. The wind power selection section is provided. In this case, each sieve mesh can be sorted into a lightweight item and a heavy item by the suction duct or the wind force sorting unit.

According to the sixth aspect of the present invention, in the apparatus for selecting a fine mixed object to be treated, the air inhaler exhausts air through the cyclone separator and the back filter of the lightweight object separator. Therefore, in this case, it is possible to prevent air pollution by the back filter even if asbestos and dried sludge are mixed by separating the paper, film, and sheet strips with the cyclone separator.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a detailed apparatus for sorting mixed workpieces according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a side view of a typical example of a sorting apparatus according to the present invention, FIG. 2 is a perspective view of a main part of the sorting apparatus, FIG. 3 is a side view for explaining the principle of a jumping screen of a movable sieve, and FIG. FIG. 5 shows another example of a movable sieve, and FIG. 5A is a perspective view of a trommel shifter, FIG. 5B is a perspective view of a vibrating sieve, and FIG.

In FIG. 1 to FIG. 3, a typical example of a device 1 for sorting fine or flake-like finely mixed objects to be processed such as shredder dust mixed with a wide range of substances is one having different sizes and weights. Are supplied from above, and three types of sieves G are sequentially arranged in ascending order of the smaller sieves.
1 to G3, a movable sieve 10 sorted by the movable sieve 10, a conveying means 15 for sending the sieved products W1 to W3 sieved by the movable sieve 10 to a duct rising part 25, and a supply of the sieved material by the conveying means 15. Vertical lower end 2 for dropping heavy objects
6 comprising an open rising portion 25 and a substantially horizontal portion 28 provided with a cyclone separator 31 of a lightweight separator.
The downstream end 29 of the lightweight material separator 31 is
And ducts 21, 22, and 23 connected to each other. The rising portion 25 can be installed in an inclined state other than vertical.

The jumping screen 10 of the movable sieve is
A plurality of tough special synthetic rubber nets 11 made by HEIN, LEHMANN of Germany and having a suitable number of perforations and having appropriate elasticity are sectioned in the longitudinal direction, and one cross beam 12, 13 fixed to the net 11 is formed. It is connected to the side plates 12A and 13A (which are supported by the support springs 12B and 13B, respectively) which reciprocate in opposite directions, and the section where the cross beams 12 and 13 are close to each other is deformed downward. When the cross-beams 12 and 13 are received and then separated from each other, the sieve is screened while repeating the operation in which the cross-beams 12 and 13 are pulled and flipped up. Does not clog. The reciprocating motion of the side plates 12A and 13A is obtained by connecting the motor output shaft 14 with the connecting springs 12C and 13C with a phase shift of 180 degrees. Since the object to be processed is periodically jumped, the screening efficiency is high, the structure is simple, maintenance and inspection are easy, and the power consumption is small.

The vibratory feeder 15 of the conveying means uses a vibrator capable of easily and widely adjusting the conveying amount under the control of an inverter. Send to Air inhaler 3
A constant weight negative separation pressure is generated in the duct rising section 25 by using a roots blower or the like having a large air volume as the reference number 5, and the constant separation negative pressure is maintained by the constant supply. The air inhaler 35 exhausts air through the back filter 41.

Thus, regardless of whether the material passing through the sieve is vertical or inclined at the rising portion 25 of the duct, the heavy material W1H according to the airflow sucked from the open lower end 26 thereof.
ＷW3H fall, and light objects W1LＬW3L are conveyed to the airflow. Here, the objects to be treated are sorted into lightweight materials W1L to W3L, which are overwhelmingly flammable organic materials, and heavy materials, which are overwhelmingly incombustible inorganic materials. The lightweight materials are collected in the lightweight separator 31 and the heavy materials are collected in the lower end 26 of the duct. Is done. It goes without saying that the branch point of the lightweight object and the heavy object can be changed by changing the air flow rate.

Next, another example of the apparatus 2 for sorting fine mixed objects will be described with reference to FIG. The same components as those of the representative example are denoted by the same reference numerals, and description thereof is omitted. The sorting apparatus 2 is configured such that fine objects to be treated W0 in which objects having different sizes and weights are mixed are supplied from above, and are sieved by a movable sieve jumping screen 10 for sieving and sorting. Feeder for conveying the air to the wind separation unit 50, and a wind separation unit 50 provided with a blower 51 for applying a positive pressure wind in the process of allowing the sieved material supplied by the vibro feeder 15 to fall naturally. ing.

The wind separation unit 50 includes a vibratory feeder 15
Is provided with a separation casing 55 which is air-tightly connected. In the separation casing 55, the air discharge port 52 of the blower 51 is provided below the outlet of the vibrator feeder 15, and as the distance from the outlet increases, it is sorted from heavy to light, and the number of separation receiving portions may be increased as needed. Although it is possible, here, two separate receiving portions 53 and 54 for a heavy object and a light object are provided. Exhaust can be exhausted to a back filter (not shown) to collect suspended matter. By changing the positive pressure wind power, it is possible to change the branch point between light and heavy objects.

In addition to the above, the movable sieve 10 is shown in FIG.
To (c). In the case of the trommel shifter 10A of FIG. 5 (a), the rotation of the inclined horizontal cylindrical sieve results in high sieve sorting efficiency, a simple structure, easy maintenance, and low power consumption. In the case of the vibrating sieve 10B of FIG. 5B, the vibrating sieve 10B has a structure in which the sieve boxes with smaller sieves are sequentially stacked from the top to the bottom and vibrated, and are compact. Stacked cylindrical sieve 1 of FIG.
In the case of 0C, it is a structure that swings by rotation of the eccentric cam and is compact. Although not shown, in the case of the rotary rotor array sorter, a large-scale sorting process is possible.

The rotary rotor array sorter has been filed by the applicant of the present application and is disclosed in Japanese Patent Application No. Hei 5-176001.
And Japanese Patent Application No. 5-338816 by the inventor of the present application.
No., Japanese Patent Application No. 5-353235, Japanese Patent Application No. 6-73987
And Japanese Patent Application No. 6-73988. Basically, at least the objects to be processed of different sizes are supplied from the upper part of one end and sieved to the discharge side of the remaining residue, so that the objects to be processed are sent to the upper side for screening. A plurality of rotors that are arranged in parallel with each other in the frame and are driven to rotate in the same direction in the vertical direction. A plurality of bodies are arranged so as to interlace with the rings of adjacent rotors alternately to form sieve mesh therebetween.

[0021]

As apparent from the above description, (1)
According to the finely-mixed workpiece sorting machine according to claim 1 of the present invention, the movable sieve is a continuous sieve sorting operation without clogging even when the workpiece is wet or wet. In the sieve passing material supplied by the conveying means,
Regardless of whether it is vertical or inclined at the rising part of the duct, heavy objects fall in response to the airflow sucked from its open lower end, and light objects are conveyed to the airflow. here,
The objects to be treated are sorted into lightweight materials that are overwhelmingly flammable organic materials and heavy materials that are overwhelmingly incombustible inorganic materials. The light-weight materials are collected in a lightweight material separator, and the heavy materials are collected at the lower end of the duct. By changing the air flow rate, it is possible to change the branch point between the light and heavy objects.

(2) In the present invention, according to the apparatus for sorting fine mixed objects according to the second aspect of the present invention, the movable sieve comprises the first aspect.
In the same way as in the apparatus in the above, even if the material to be treated is wet or wet, it enables continuous sieving operation without clogging. In the process of falling naturally, a positive pressure wind is blown by the blower to blow off the light objects in the distance, drop the heavy objects close, and collect the light and heavy objects respectively in the far and near parts from the blower I can do it. By changing the positive pressure wind power, it is possible to change the branch point between light and heavy objects.

(3) According to the fine mixing object sorting apparatus of the third aspect of the present invention, the movable sieve is selected as a jumping screen, a trommel shifter, a vibrating sieve, a superposed cylindrical sieve, and a rotary rotor array sorting. It is used by selecting from one of the machines, and all of them enable continuous sorting without causing clogging. In the case of jumping screens, the screening efficiency is high because the objects to be processed are jumped periodically, the structure is simple, maintenance and inspection are easy, and the power consumption is low. In the case of the Trommel shifter, the slanted horizontal tubular sieve is rotated for high screening efficiency, simple structure, easy maintenance, and low power consumption. In the case of a vibrating screen, it is compact because it has a structure in which a sieve box with a small mesh size is sequentially laminated from top to bottom for vibration. In the case of a lapped cylindrical sieve, the structure is swayable by the rotation of the eccentric cam, which is compact. For a rotating rotor array sorter,
Large-scale selection processing is possible.

(4) According to the fine sorting apparatus for mixed processed objects according to the fourth aspect of the present invention, the conveying means is constituted by a vibro feeder, a belt conveyor or a combination thereof, and the conveying distance is However, a vibro feeder is suitable for a short and continuous fixed amount supply, and a belt conveyor is suitable for a long conveyance distance, and a vibro feeder can be appropriately incorporated for continuous fixed amount supply.

(5) According to the fine mixed object sorting apparatus according to the fifth aspect of the present invention, the movable sieve is provided with a plurality of sieves having a mesh size, and each of the sieves corresponds to the above. A suction duct or the above-mentioned wind power sorting unit is provided, and in this case, it is possible to sort into lightweight products and heavy products by the suction duct or the wind power sorting unit for each sieve mesh.

(6) According to the fine mixed object sorting apparatus of the sixth aspect of the present invention, the air inhaler exhausts air through the cyclone separator and the back filter of the lightweight object separator. Therefore, in this case, it is possible to prevent air pollution by the back filter even if asbestos and dried sludge are mixed by separating the paper, film, and sheet strips with the cyclone separator.

[Brief description of drawings]

FIG. 1 is a side view of a representative sorting apparatus according to the present invention.

FIG. 2 is a perspective view of a main part of the sorting apparatus.

FIG. 3 is a side view for explaining the principle of a jumping screen of a movable sieve.

FIG. 4 is a side view of another example of the sorting device according to the present invention.

FIG. 5 shows another example of a movable sieve, in which (a) is a perspective view of a trommel shifter, (b) is a vibrating sieve, and (c) is a perspective view of a stacked cylindrical sieve.

[Explanation of symbols]

 1 Representative example fine sorting apparatus for mixed processed objects 2 Fine example sorting apparatus for small mixed processing objects 10 movable sieve (jumping screen) 10A movable sieve (Trommel shifter) 10B movable sieve (vibrating sieve) 10C movable sieve (Layered Cylindrical Sieve) 15 Conveying Means (Vibro Feeder) 21, 22, 23 Duct 25 Standing Part with Lower End Opened 28 Horizontal Part 31 Light Weight Separator 35 Air Inhaler 41 Back Filter 50 Wind Selector 51 Blower W0 Processed Object W1 ~ W3 sieve pass

Claims (6)

[Claims] 1. A movable sieve for finely selecting a fine object to be processed, which is a mixture of substances having different sizes and weights, and a material passing through the sieve screened by the movable sieve, which rises in a duct. And a substantially horizontal portion provided with a light weight separator and a vertical or inclined rising portion for lowering a heavy object to receive a material passed through the sieve by the conveying means and to drop a heavy object. A fine sorting apparatus for mixed processed objects, wherein a downstream end of the substance separator is composed of a suction duct connected to an air suction device. 2. A movable sieve for finely selecting a fine object to be processed, in which substances of different sizes and weights are mixed, and a sieve passing through the sieve, which is screened by the movable sieve. And a wind-power sorting unit equipped with a blower for applying positive pressure wind force in the process of naturally dropping the sieve-passed material supplied by the transport unit. Sorting device for objects to be processed. 3. The fine mixed object to be treated according to claim 1 or 2, wherein the movable sieve is selected from a jumping screen, a trommel shifter, a vibrating sieve, a stacking cylindrical sieve and a rotary rotor array sorter. Sorter. 4. The sorting apparatus for fine mixed processed objects according to claim 1, wherein said conveying means is constituted by a vibro feeder, a belt conveyor or a combination thereof. 5. The fine mesh according to claim 1, 2 or 3, wherein the movable sieve includes sieves having a plurality of mesh sizes, and the suction duct or the wind-power sorting unit is provided corresponding to each sieve. Sorting device for various mixed objects. 6. The apparatus for sorting a fine mixed processed object according to claim 1, wherein the air inhaler exhausts air through a cyclone separator and a back filter of a lightweight object separator.